Hitachi air Core 600 Installation & Maintenance Manual
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Summary of Contents for Hitachi air Core 600
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Page 2: Table Of Contents
Contents Caution Statements ......................10 Safety Precautions ......................12 Composition of the Air Conditioner ................19 Operation Manual......................21 Diagram of Refrigerant Cycle & Wiring................24 1. Refrigerant Flow Diagram ....................24 2. Electrical Wiring Diagram....................24 Installation and Maintenance................... 25 1. Safety Notice........................25 2. - Page 3 There are symbols on both indoor and outdoor equipment. This symbol applies to the R32 refrigerant, the type of which is on the label of the outdoor unit. In the case of this refrigerant, the R32 unit uses Warning a flammable refrigerant. (Risk of fire) Yes, if this refrigerant leaks and is exposed to an open flame or a heated part.
- Page 4 • Do not turn on the lights until the entire operation is completed, if the lights are turned on before the entire operation is completed, it may cause serious accidents such as electric shock or fire. • If the leaking air conditioner comes into direct contact with the flame, toxic gases may be produced.
- Page 5 • This unit is part of the package that makes up this air conditioner and cannot be installed in complete sets or with equipment not authorized by the manufacturer. • When a pipe less than 3 meters in length is installed, the sound of the outdoor unit will be transmitted to the indoor unit, which may produce working noise or abnormal noise.
- Page 6 Caution If the unventilated area is smaller than the minimum installation area, the air conditioner should not be installed in this area. The installation height is the minimum installation height, that is, the minimum installation height of the cold air pipe or indoor unit, whichever is the lowest. The following table is determined according to the minimum installation height of 1.8 meters and 2.2 meters If the required minimum installation height is less than 1.8 meters, the minimum installation space must be recalculated.
- Page 7 • Individuals involved in operating or able to manage the air conditioning cycle should hold a valid qualification issued by an industrial certification assessment body, which has the authority to certify skills. • The ability to operate air conditioners safely according to instructions approved by industry authorities •...
- Page 8 - The equipment and vents are working properly and nothing is blocking them. - If the air conditioner water circuit is used indirectly, check the presence of air conditioner water. - Text on the device must be clear and easy to read, and difficult-to-read text and symbols should be corrected.
- Page 9 • Such inspections should take into account the effects of service life or continuous vibration from sources such as compressors or fans. 6. Detection of flammable air conditioners • Do not use fire sources to locate or detect air conditioning water leaks. •...
- Page 10 o The air conditioner transfer cylinder should be kept upright. o Be sure to ground the cooling system before adding th e air conditioner to the system. o When filling is complete, close the system label (if it is not already there). o Be very careful not to add too much air conditioning to the cooling system.
- Page 11 • If possible, the cylinders used to pump the air conditioner should be flushed from a system that does not contain the air conditioner and cooled before starting to pump the air conditioner from the system. • The equipment used to pump air conditioning water from the system should be placed in the correct working order, the documentation shows that the working procedures for the equipment are at hand, and the equipment used to pump air conditioning water from the system should be suitable for pumping flammable air conditioning from the system.
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Page 12: Caution Statements
Caution Statements Alert Symbols ： DANGER : The symbol refers to a hazard which can result in severe personal injury or death. : The symbol refers to a hazard or an unsafe practice which may result in severe personal injury WARNING ... - Page 13 Caution Statements WARNING ● The wiring diagram with a clear indication of the connections and wiring to external control devices and supply cord is detailed in “Electrical Wiring Diagram” part. ● The method of connection of the appliance to the electrical supply and interconnection of separate components is detailed in “Installation and Maintenance”...
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Page 14: Safety Precautions
Safety Precautions Symbols in this Installation Manual are interpreted as shown below: Be sure not to do. Be sure to follow the instruction. Grounding is necessary. Pay attention to such a situation. Warning: Incorrect handling could cause a serious hazard, such as death, serious injury, etc.. - Page 15 Safety Precautions Operating condition Noise pollution Install the air conditioner at a place that can The protective device may trip and stop if it is bear its weight and ensure the quiet operated beyond allowed temperature range. operation. If the air conditioner runs in "COOLING" or "DRY"...
- Page 16 Safety Precautions Precautions for using R32 refrigerant The basic installation work procedures are the same as the conventional refrigerant (R22 or R410A). However, pay attention to the following points: WARNING 1. Transport of equipment containing flammable refrigerants. Attention is drawn to the fact that additional transportation regulations may exist with respect to equipment containing flammable gas.
- Page 17 Safety Precautions WARNING 6-8 Checks of the refrigeration equipment • Where electrical components are being changed, they shall be fit for the purpose and the correct specification. • At all times the manufacturer's maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer's technical department for assistance.
- Page 18 Safety Precautions WARNING Detection of flammable refrigerants • Under no circumstances shall potential sources of ignition be used in the searching or detection of refrigerant leaks. • A halide torch (or any other detector using a naked flame) shall not be used. Leak detection methods The following leak detection methods are deemed acceptable for systems containing flammable refrigerants: •...
- Page 19 Safety Precautions WARNING Prior to the task, an oil and refrigerant sample shall be taken in case that an analysis is required prior to the re-use of recovered refrigerant. It is essential that electrical power is available before the task. a) Become familiar with the equipment and its operation.
- Page 20 Safety Precautions WARNING • Appliance shall be installed, operated and stored in a room with a floor area larger than X (X see below). • The installation of pipe-work shall be kept to a room with a floor area larger than X (X see below). •...
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Page 21: Composition Of The Air Conditioner
Composition of the Air Conditioner Indoor unit Outdoor unit NOTE: The figures are based on the external views of a standard model. Consequently, the shape may differ from that of the air conditioner model you have selected. - Page 22 Composition of the Air Conditioner Remote controller(optional) You can control the air conditioner with the wire or wireless remote controller. It is used for controlling power ON/OFF, setting the running mode, temperature, fan speed and other functions. There are different types of remote controllers that can be used. Operation instructions will be further specified in remote controller's manual.
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Page 23: Operation Manual
Operation Manual 1. Special Remarks • 3-minute protection after the compressor stops To protect compressor, the system implements a 3 minutes once operation is stopped. • 5 minute-protection Compressor must run for at least 5 minutes once operation starts. During the 5 minutes, compressor will not stop even after set point is reached. - Page 24 Operation Manual 3. Filter Cleaning Do not operate the system without air filter to protect the indoor unit heat exchanger against being clogged. Turn OFF the main power switch before taking the filter. 3.1 Filter Cleaning ndication When letters “FC” , it indicates it’s time to clean the filter. 3.2 Take Out the Filter Take out the air filter according to the following steps.
- Page 25 Operation Manual 4.Troubleshooting CAUTION When drain water overflows from the indoor unit, stop the operation and contact your dealer. When you smell or see white smoke coming out of the unit, turn OFF the main power supply and contact your dealer. If Trouble issue persists ...
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Page 26: Diagram Of Refrigerant Cycle & Wiring
Diagram of Refrigerant Cycle & Wiring 1. Refrigerant Flow Diagram Indoor unit Cooling cycle Apellation Apellation Hexagon nut Ambient temperature sensor Indoor heat exchanger Coil temperature sensor List of componentnames Outdoor unit Apellation Compressor Outdoor heat exchanger Electronic expansion valve Stop valve(Liquid) Stop valve (Gas) List of componentnames... -
Page 27: Installation And Maintenance
Installation and Maintenance 1. Safety Notice WARNING ·Installation should be left to the dealer or other professional personnel. (Improper installation may cause water leakage, electrical shock, or fire.) ·Install the unit according to the instruction given in this manual. (Incomplete installation may cause water leakage, electrical shock, or fire.) ·Be sure to use the supplied or specified installation parts. -
Page 28: Tools And Instruments For Installation
Installation and Maintenance Tools and Instruments for Installation Number Number Tool Tool Number Tool Standard screwdriver Pipe cutter Drill Cross head screwdriver Pipe expander Vacuum pump Inner hexagon spanner Charge hose Knife or wire stripper Pipe bender Leveler Measuring tape Adjustable wrench Hammer Installation of the Indoor Unit... - Page 29 Installation and Maintenance ● Select the installation location as shown in Fig 3.2: (A) Minimum Clearance (B) Down Slope Pitch of Drain Piping:1/25～1/100 3/8 in. to 3/4 in. (10mm to 20mm) a+28 a(mm) Model 18K/25K/30K 36K/42K/48K/55K ● Consider the air distribution from the indoor unit to the space of the room, and select a suitable location so that uniform air distribution can be achieved in the room.
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Page 30: Installation
Installation and Maintenance 2 Installation 1 Opening of False Ceiling and Suspension Bolts (1) Determine the final location and direction of installation of the indoor unit paying careful attention to the space for the piping wiring and maintenance Pattern board for installation is printed on the packing Cut off the pattern board for opening the false ceiling and installation of suspension bolts. - Page 31 Installation and Maintenance 3 Mounting the Indoor Unit (1) Mount the nuts and washers into the suspension bolts. (Unit : mm) Suspension Bolt (Field Supplied) Nut (Field Supplied) *Washer with Insulation (Accessary) Suspension Bracket (Attached Indoor Unit) *Washer (Accessary) Nut (Field Supplied) Surface of Ceiling Fig .
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Page 32: Installation Details For Air Panels
Installation and Maintenance (unit : mm) Slub Indoor Unit 10 to 35 10 to 35 Surface of Ceiling Surface of Flange Indoor Unit (Viewed from Bottom Side) a. For Ceiling already Completed with Panels Attach the scale to the Attach the scale to the bottom side of the unit. -
Page 33: Installation Of Outdoor Unit
Installation and Maintenance 4. The Installation of Outdoor Unit 4.1 The Initial Check ● The outdoor unit should be kept in well ventilated and dry place. ● Make sure that the noise and exhaust does not disturb your neighbors. ● Never install the outdoor unit at the place with high oil fog, acidic or alkaline environment, salt mist or harmful gas such as sulfur steam. -
Page 34: Indoor Unit Refrigerant Piping
Installation and Maintenance 5.2 Piping Connection (1) Position of piping connection is shown in Fig. 5.1.(Indoor Unit) (Unit : mm) Cut off the excess length of bolts to avoid difficulties beton anchor bolt in movement in future. Fig.4.3 The installation of anchor bolts 840 (Unit) 149 (Liquid Pipe) Setscrew... -
Page 35: Refrigerant Length Between Indoor And Outdoor
Installation and Maintenance 5.3 Refrigerant Length between Indoor and Outdoor Pipe length L Indoor unit Narrow pipe Hex wrench Height difference H Outdoor unit Wide pipe Bonnet of wide valve Bonnet of narrow valve Service valve Max. Height Add. Max. Pipe Bonnet of service valve Model difference... -
Page 36: Drain Piping
Installation and Maintenance 6. Drain Piping ● Do not create an upper-slope or rise for the drain piping, since drain water can flow back to the indoor unit causing leakage into the room when the system operation is stopped. ● Do not connect the drain pipe with sanitary or sewage piping or any other drainage piping. ●... -
Page 37: Electrical Wiring
Installation and Maintenance 7. Electrical Wiring ● Turn OFF the main power supply to the indoor and outdoor unit before electrical wiring work or a periodical check is performed. ● Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or a periodical maintenance is performed. -
Page 38: Test Run
Installation and Maintenance Installation and Maintenance NOTES: 1) Follow local codes and regulations when sizing field wiring, and all the above are the minimum size. 2) The wire sizes marked in the table are selected at the maximum current of the unit according to IEC 60335-1 or national/regional standards. -
Page 39: Unpacking The Unit Instructions
Unpacking the unit instructions Specifications Dimension (WxHxD) mm 840×236×840 840×236×840 840×236×840 840×272×840 840×272×840 840×272×840 840×272×840 Indoor unit 950×950×360 950×950×360 950×950×360 Packing(LxHxW) 950×950×320 950×950×320 950×950×320 950×950×360 27/32 27/32 27/32 27/32 Net/Gross weight 23/28 23/28 23/28 900×1170×320 900×1170×320 900×1170×320 Dimension(WxHxD) 810×580×280 860×670×310 860×670×310 900×750×340 Outdoor unit... - Page 41 Specifications in this document are subject to change without notice, in order that Hitachi-Johnson Controls Air Conditioning, Inc. may bring the latest innovations to their customers. Hitachi-Johnson Controls Air Conditioning, Inc. © 2023 Hitachi-Johnson Controls Air Conditioning, Inc. 2023.5 Version.B...